arquembourg



APPLICATION FILED JAN. 17,]913.

E. H. ARQUEMBOURG.

CARBU-RETER.

Patented Dec. 28, 1915.

3 SflEETS-SHEET I.

J'Efl' (IUHUHHHHHIIIIIlIIlll WITNESSES j iii;

E. H. ARQ'UEMBOURG.,

CARBURETER.

APPLIICATION FILED um. 17, ms.

1,166,308; Patented Dec.28,1915.

3 SHEETSSHEET 2.

wn'wesszs I INVENTIOR g 2/) J EMILE HENRI ARQUEMBOURG W N BY, ATTORNEYSfigw f3.

t. H. ARQUEMBOURG.

CARBURETER. APPLICATION FILED um. n, 1913.

3 SHEETS-SHEET 3.

Fig.3.

11 ji j 0 Y ATTORNEYS I U ITED STATES I ATENT OFFICE.

-EMILE HENRI ARQUEMBOUBG,.OF PARIS, FRANCE, VELLE, H. AR QUEMBOUBG &CIE., OF

ASSIGNOR 'ro soom'rn J. sno rams, rnancnoannunnrrnn any moment thecarburation suited to the proper operation of the motor as well whenworking at a reduced speed as when working at high speeds.

The invention is characterized'by-the' application to a constant levelcarbureter of a spraying nozzle of the latter..

small secondary ,carbureter mounted in alinement with the axis of theneedle valve of the gasolene tank; the stem' of this needle valve, whichin this case is hollow, serves as a 'gasolene inlet pi e leading to thesecondary carburetor an supports at its end the The mixing chamber ofthe secondary carbureter opens in the shell of the slowing down throttlecock, so that by working the latter either the main carbureter or thesecondary carbureter ma be optionally put into operation:

The accompanying drawings illustrate by way of example a form of thistype ofcarbureter.

Figure 1 is a side elevati'onthereof; Fig. 2 is an end view; Fig. 3 is avertical section made on line A-A of Fig. 2.

In, these drawings: a designates the spraying nozzle of the main carureter provided with a plurality of s rayin holes a, b is thegasolenetank, t e nee le valve of the latter, of the float controlling saidneedle,

valve through the medium of vers e, f the air inlet of the maincarbureter, gthe supplementa the thrott e cock,- 5 the plu of the cook.

The stem 0 of the need e valve is hollow and provided at its lower partwith one or 7 several orifices a through which the'gas'olene can enterand rise. Within this hollow needle valve is placed the spraying nozzleof the secondary carburetor; the stem of sai spraying nozzle is providedwith a flan ge resting on the upper end of the hollow needle valve 0. I

The mixing chamber of the secondary car-' Specification of LettersPatent.

.tendsto raise the sleeve m .cover 0 of the tank of the throttle cock.

may be .ball air intake, h the shell of Patented Dec. 28, 1915.

Application filed January 17, 1913. Serial R 0. 742,602.

bureter is constituted by a removable tube is mounted upon the seat 1erforated with acentral hole through whic air may enter and 1n whichopens the s raying nozzle 7'. The-seat Z is integral with a sleeve mcapable of sliding and rotating upon a hollow stem 1:. supported by thecover 0 of'the tank- A returning spring takin a bearin on the end ofsaidhollovi stem ni cons'tantlg and, consequently, the seat I. Said seatl i-sprovided with a guide rodl yentering into a hole in the and thepurpose of register of't e axes which is to insure the sprayingnozzle j.

of the seat Z and of the Through the hollowstem 11. passes atick-- lerallowing to work by hand the float d of t e gasolene tank; a-returning sring r taking a bearing upon a cap screw extension of the hollow stem1:. urges-said tickler g upwardly.

t The tube is abutsat-its upper part and is held under the action of thespring p against theend of the bent passages constituting an extensionof the mixing chamber a formed ma boss t su of said bent passages openswithin the shell It through an orifice s the diameter of which isslightly greater-than that necessalrg workmg at a reduced speed; this orce is uncovered or closed at will by the plugs orted by the shell hehorizontal branch for of'the cock,1as ex lained hereafter; at itsopposite-end, saidorizontal branch of the passage 8 is provided with aplug which perforated with a gaged prifice a constituting asupplementary. air inlet onfice.

. In the boss at is provided a chamber 1:, which can circulate a hotfluid for instance the exhaust gases ofthe motor or the water issuingfrom the radiator) adapted to heat.

the passa s for the purpose of insuring the volati ization of thegas'olene previous to its-admission to the throttle cock and conuentlyto the motor.--

he communication of the orifice s of the secondary 'carbureter with theipe of the shell I; uponwhich is mounted t e pipe leading to' the motor,is; obtained by means of a notch w provided 1n the plug i of thethrottle cock.- The said notch is arranged in such a manner that the plui, in the position corresponding to the work ng at a reduced 'richingthe air or the air too slightly carspeed (Fig. 3), completely closes themain carbureterj and uncovers but partially the orifice s ofthesecondary carburetor.-

WVhen, for putting in operation the main carbureter, the plugi isrotated in the direc tion of the arrow illustrated in Fig. 3, said plugfinishes uncovering the orifice s and at the same time opens the maincarbureter; in consequence of the increase of the cross se'c tional areaof the outflow orifice of the secondary carbureter, the proportion ofgasolene, relatively to the air, sucked in by the motor increases byreason, as is well known, of the difference ofinertia of air andgasolene; this excess of gasolene is used forenhureted supplied by themain carburetor at the time it is put into operation. In theseconditions, the substitution of the secondary carbureter for the maincarburetor may be effected without running the risk that the mixture,admitted to the motor, falls during this'substitution, to a degree ofcarburation prejudicial for theproper working of the motor. WVhen theplug 5 is rotated in reverse direction to the arrow illustrated inFigi.3, said plug closes both the main and secon ary carbureters and thusallows of avoiding any consumption of asolene whena motor, car goes downa hi1 under the action of its Weight.

The notch to may be more or less extended so as'to allow of actingsimultaneously. or

not on both carburetors by means of the j plug 2'.

The carburation of the secondary car-- bureter may be varied by means ofa plug u, by replacing the latter by another lug presenting an orificehaving a smtaby ga ed diameter; the de ression wlthin this car ureter isregulate at will and, conseqglently the quantity of gasolene dischargedy the spraying nozzle jwill also be regulated.

The present deviceallows of easily and readily putting up and takingoff. the constitutive elements of the secondary carbureter either forvisiting, cleaning or substiv tuting them for others; In fact, by meansof a pressure exerted upon the sleeve 11 the seat Z lowers, the tube kis no longer held and can then be removed; then, by lifting the seat Z.so as to disengagethe rod 2 of the covero and by causing it to rotateabout the hollow stem at, ready access-may be had to'the spraying nozzlewhich can then be withdrawn from the hollow needle valve 0,"

the cover o,flevers a, needle valve stem 0 andfioat d of the constantlevel mayialso be removed. .LThe putting back intoplacej of the elementsisfeifected quite as easily by brin inggback' the seat Lin the ax1s omedia valve c and introducm the guider lowing it to rise again under theaction of its spring. It is, moreover, to be noted the.

a reaction of the spring p.

It is to be understood that the form of device above described is givenonly by way of example and thatthe present device may be applied to anyconstant level carbureters and'provided with a throttle cock.

Claims:

1. A carburation apparatus for explosion motors characterized by thecombination of a main carbureter, a secondary carbureter, a carburetedmixture admission pipe and a throttle cock located in said admissionpipe adapted to control both carbureters, a pipe connecting thesecondary carbureter with the throttle cock through anorifice having adiameter greater than that calculated for running at slow speed, meansfor causing the throttle cock to partially uncover said orifice in theposition corresponding to slow speed and to completely uncover saidorifice when the throttle cock is turned to position corresponding tooperating position, for the mam carbureter and to progressively closethe secondary carbureter at such time, the

whole combined to cause the secondary carbureter to give a mlxture richingasolene to at the beginning of its operation.

2. A carburation apparatus for explosion motors, characterized by thecombination of a main carburetor, a secondary carbureter, a

.throttlecock placed on the pipe for the admission of the carburetedmixture to the motor and adapted to control both carbureters, a pipeputting the secondary carbureter into communication with the throttlecock and opening in the latter'through an orifice haw ing a diametergreater than that calculated for running at slow speed, a notch providedon the plug of the throttle cock and adapted to uncover but partly, inthe osition corresponding to the running at sow speed, the orifice ofthe secondary carbureter, to uncover completely'said orifice when saidplug is turned in the position corresponding to the putting in to use ofthe main carburetor,

and to gradually close the secondary carbureter at the time of theputting into use of the main carbureter.

' 3. A carburation apparatus for explosion motors characterized by thecombination, a

constant level feeding tank provided with a float, a hollow needle valvepresenting at its lower art holes for the passage of the hquid fue amain carburetmg chamber in communication with the constant level tank,-a s raying nozzle through which the lutnd.

uel flows into the main carbureting'gh'am er, a secondary carburetmgchamber in .which opens a spraying nozzle mountedon the hol- 1'8 theinlet pipe leading to the motor and low needle valve, a throttle cockplaced upon adapted to control the main carbureter and the secondarycarbureter, a pipe putting the secondary carbureting chamber intocommunication with the throttle cock andlopenin the latter through anorifice having a diameter greater than that calculated for running atslow speed, a notch provided on the plug of the throttle cock andadapted to uncover but partly, in the position corresponding to slowspeed, the orifice corresponding to the secondary carbureting chamber,to uncover completely said orifice when said plu'gis turned in. theposition corresponding to the putting into use of the main carbureter,and to gradually close said orifice in proportion as it uncovers theorifice of the main carbureting chamber.

4'. A carburation apparatus for explosion motors characterized by thecombination: a constant level fe'eding tank provided with a float, ahollow needle valve presenting at its lower part holes for the passageof'the liquid fuel, a main carbureting chamber in communicatlon with theconstant level tank, :1.

s raying nozzle through which the ii uid a secondary carbnreting chamberin which e1 flows into the main carbureting cham er,

opens a sprayin nozzle mounted on the hollow needle va vs, a throttlecock placed upon the inlet pipe leading to the motor and adaptedtocontrolthe main carbureter and the secondary carbureter, a pipe puttingthe ameter greater than that calculated for runsecondary carburetingchamber into communicati'on with the throttle cock and openmg in thelatter through an orifice having a dining at slow speed, a Stoppersupported by said pipe and provided with a gaged supplementary air inletorifice, a notch provided on the plugof the throttle cock and adapted touncover but partly, in the position corre' sponding to slow speed the.orifice corresponding to the secondary earbureting chamber, to uncovercompletely said, orifice when I said plug is turned in the positioncorrevsponding to the putting into use of the main carbnretenand togradually close said orifice in proportion as it uncovers the orifice ofthe mam carburetlng "chamber.

5. In combination, a main carbureter havmg a throttle cock, a secondarycarbureter connected to said cock and opening in the latter through anorifice having a diameter greater than that calculated for running atslow speed, said throttle cock being constructed and arranged to closeentirely both,

carbureters, to partiallyvuncover the orifice of the secondarycarburetor in the case of the running at slow speed, toopen said orificecf the secondary carbureter at the time of the opening of the maincarbureter and to progressively close the orifice of the secondarycarbureter in proportion to, the opening of the main carbureter.

6. The combination-with a main carbureter having a constant level floatfeed chamber, a, pointed shut-off valve in the feed chamber, said valvebeingllollow and provided with orifices,and a throttle valve having anotch or groove in. its periphery, of a secondary carbureter connectedwith the throttle valve by a passage leading through carried by thecover of the feed chamber and having an opening therein, a tube on theseat between the said seat and the end of the conduit, and a: jet tubeprojecting into-the opening of said seat.

The foregolng specification of my improvements in carburetors, signed bymethis 30th day of December 1912.

EMILE HENRI ARQUEMBOURG.

Witnesses:

LUCIEN MEMMINGER RENE THIRIOT.

